County health officials say there are important things to remember to help prevent heat-related illness.

"You need to remember to keep yourself hydrated by drinking plenty of water," said Dawnells Marshall, public health director for Douglas County. "When it's really hot, it's better to drink water than those beverages that contain a lot of caffeine. And it's not just adults, but young children and some of our seniors that might not have the most stable electrolyte systems in their body."

Marshall said if you have nausea, a rapid heart rate or seizures, contact emergency medical professionals: those are are all symptoms of heat exhaustion and heat stroke.